Paper bottle and container



Dec. 30, 1941. j w. PELZER E 2,267,993

PAPER BOTTLE AND CONTAINER 2 Sheets-Sheet 1 Filed Dec. 19, 1938 8 mm 1,MH

0 r HH 5 ATTORI/VEY.

Dec. 30, 1941. PELZER ET A 2,267,993

PAPER BQTTLE AND CONTAINER 2 Sheets-Sheet 2 Filed Dec. 19, 1938INVENTORS Pet Pei gaps under the ring,

Patented Dec. 30, 1941 UNITED STATES PATENT OFFICE PAPER nomi e ficomm vWilliam ram and mm 11. raw,

New York, N. Y.

Application December 19, 1938, Serial no. 246,606

This invention relates to'p'aper bottles of the type shown in LettersPatent of the United States No. 1,310,117 having a body formed from apaper tube plaited at one end to form the neck and mouth, the plaitsbeing clinchedby a metal ring, and the opposite end being closed by apaper disk having a flange clinched to the body end by a metal ring, Inthis type of bottle the neck ring is U -shaped-in cross-section, withthe inner flange deeper than the outer flange and is clinched inposition by expanding the internal flange against the inner wall of theneck to expand the plaiting and form an inward shoulder to lock the ringto the bottle neck. The bottom ring has its outer flange deeper than theinner flange and the ring flange, compressing the body and bottomflange,

and forming an outward shoulder to lock the bot-.

""the ring into is clinched in position by contracting the outeras,compared to triple-ply at the plaits would leave fllled with paramnwith which the bottle is waterproofed, would create leaks. The outerflange oi the neck ringformed a smooth surface with the plaits andprovided no outer bead or shoulder for grasping the bottle in use and nohead or shoulder over which a closing cap could be secured, and providedno seat for the closing disk commonly employed with glass bottles.Furthermore, it was found. necessary to employ annealed rings to avoidsplitting of the inner flange in expanding same to effect the clinching.The bottom ring in this type bottle proved satisfactory so far asclinching the paper was concerned, but care had to be exercised toprevent the inner flange from embedding too deeply into the flange ofthe paper bottom, and frequently the paper bottom due to the weight ofthe contents of the the bottle body. and tendency of the inner flange oithe ring to cut the flange of the paper bottom and cause leaks.

The object of this invention is to overcome the defects above pointedout and generally to improve this type 01 bottle, and in carrying theinvention into effect we employ U-shaped metal neck and bottom ringshaving the outer flanges deeper than the inner flanges, andthe innerbottle would sag and cause --the flange to pull away from v in bothinstances, there was a and unless'these gaps were flange being such asto seats for the sealing the bottle neck by contract- 5 Claims. (Cl.229-) flanges having narrow lateral flanges to provide disk and bottom.The neck ring is clinched on ing the outer flange. This is done byforcing the female member of adie, the male member serving as an anvilon which the ring is seated and having means for clamping the ring inthe seat through the sealing disk flange. The female die member incontracting the outer flange of the ring causes inward and engage thebottle neck causing it to contract and decrease in diameter under thelateral flange of the ring and compress the plaits and the entire neckupon the shoulder of the lateral flange, and the edge of the outerflange during this contraction continuing to curve inward between theplaits while the sections of the flange which contact the plaits curvedownward parallel with the plaits forming a series of loops over theplaits. J

In contracting the neck ring in this manner the paper near the mouth ofthe neck, includin both the single-ply and the triple-ply sections, isforced under the slightly curved shoulder of the sealing disk flange andis pressed against it to form a seal, and the paper above this pointwithin-the walls of the ring spreads and flils the space between thepaper plus the shoulder formed in the neck by forcing it under theiirmly in position. Also the contraction of the outer flange in themanner indicated forms the outer flange into a bead which serves as ameans for grasping the bottle and-as an anchorage for an overall capwhen used in addition to the sealin disk.

The bottom ring is similar tothe neckring in cross-section except thatit is deeper. The lateral flange of the inner flange forms a seat forthe flanged bottom disk, the depth of the bottom permit seating of thebottom disk on the lateral seating flange. This ring is clinched inposition by a tool having a contracting ring shaped to draw the outerflange inward at an angle to form a conic sectiong and at a point abovethe shoulder of the inner and lateral flanges the outer flange of thering is contracted into a narrow and approximately cylinflange, therebyforming a .seal at the junction of the bottle body and bottom disk andcausing 55 the paper of the body section and bottom flange this flangeto curve walls, and this spreading or the sealing seat, secures the ringwithin the ring to spread and flll the space between the walls of thering. This form or ring may also be employed to secure flanged paperheads similar to the bottle bottom into cylindrical ortapering-containers, and may be used in containers having removablesqueeze 'or .push

covers, in which case the ring may be employed either with or withoutthe lateral seating flange. The invention is illustrated in theaccompanying drawings, in which Figure 1 is an elevation of a paperbottle having a plaited neck formationand flanged paper paper bottom se-Figure 5 an elevation of a tapered container L having flanged top andbottom heads similar to Figure 4. v a

Figure 6' an enlarged view of the bottle neck ring showing the inwardlycurved contraction at the single-ply neck sections ofthe bottleand theinwardly curved and looped formations at the triple-ply plait sections.

Figure 7 an enlarged cross-section onthe line 1-7 of Figures 1 and 6showing the inwardly curved contraction at the single-ply neck sectionsand the inwardly curved and looped formations at the triple-ply plaitsections.

Figure 8 an enlarged vertical section of part of a container toillustrate the application of a squeeze or push cover. I

Figure 9 an-enlarged cross-section representing the neck ring beforecontracting the outer flange and showing the thicknesses of paper withinthe ring and parts of the die members for contracting the ring. 1

Figure 10 an enlarged cross-section representing the neck ring aftercontraction of the outer flange and showing the shoulder formation ofthe ring and paper and the squeeze of the paperupon the inner ringshoulder, the section of bottle neck being taken on the line Illl0 ofFigure '7. v

Figure 11 an enlarged view showing the bottom ring, bottle body andflanged bottom before squeezing.

Figure 12 an enlarged cross-section of a. modifled arrangement of thesqueeze or push cover shown in Figure 8.

are shown in enlarged cross-sectionvin Figure 9 and after contraction inFigures 10 and 14. In Figure 10 a plait 3 is shown squeezed against theslightly rounded shoulder I of the flange 5 by the shoulder 8 formed onthe outer flangeof the ring in its contraction, and the spread of thepaper within the ring, and in Figure 14 is shown the squeeze at thesingle-ply sections of the bottle neck. This ring is contracted by a diehaving a male member 9 in which the ring is seated, an anvil member III.which enters the ring and holds the flange 5 seated on the male member,and a female member ll having a curved shoulder I: by l3, Figure 9, ofring 4 is curved inward to contract the ring as it is driven into themember I I by member 9. In contracting the ring, the outer flange curvesinward and compresses the paper at the ring shoulder I and contracts thebottle neck slightly over the shoulder and flange 5, Figure 10. In thisoperation the edge ii of thering 4 at the bottle neck sections l4,Figure 6, between the plaits 3, curves inward andcontacts the papersections I4 and plaits 3. The resistance'to the inward curvature of thering as the paper is compressed against the shoulder 1' causes the edgel3 of the ring to curve upward parallel to the paper as seen in Figure10, while the ring sections adjacent the bottle neck sections l4continue to curve inward, and the final squeeze of the ring between thedie members results in the formation of flanges l5 and It, as

seen in the enlarged view Figure 6, the flange l5 being of less depththan flange I 6 owing to. the difierence in paper thickness of plaits 3and neck sections I4, and therefore the edge 13 extends further inwardat the neck sections I4. I

The contraction of the ring beyond the plaits results in the formationof loops l I and the deep Figure 13 a view similar to Figure 12 showingI the ring with the inner lateral flange for seating a sealing gasket,and

Figure 14 an enlarged sectional view illustrating the squeezeof thesingle-ply sections of the flanges 16 over the plaits as seen in Figure7. The final squeeze of the'ring between the die members impartsdefinite form to the outer ring shoulder .8 and firmly presses flanges|5|6 against the neck sections l4 and plaits 3 and the contracted partof the neck upon the ring shoulder I. Also the flnal squeeze of the ringforms the outer flange into a bead for the mouth of the bottle by whichthe bottle may be grasped and which bead serves as an anchorage forsecuring an overall cap when such cap is employed in addition to theusual sealing disk 6. This method of applying the metal ring to themouth of the bottle effects a dense packing of the paper between theshoulders I and I, the spreading of the paper within the ring to flllthe space between the walls of the ring, and a substantial shoulder tothe paper of the bottle neck which prevents the neck ring being pulledbottle neck upon the inner shoulder of'the neck ring, the section of thebottleneck being taken on the line l4-l4 of Figure 7. v

Referring to the drawings, I indicates the body of a paper bottle havinga necktformed by contracting one end of the tube into loops which areflattened to form plaits 3 The p'laits are secured by a metal neck ring4 which forms the mouth of the bottle. This ring is U-shaped incross-section, the outer flange of which is deeper than the innerflange, and the inner flange having a narrow lateral flange 5 to form aseat for the usual sealing disk 6, Figure 2.

Ring 4 before contraction and the plaited neck -6 firmly to its seat onoff. Another important feature applied in this manner is thatflnal'squeeze in the die, the pressure of the die members on the ringbetween shoulder 8 and the of the neck ring curvedseat in the malemember causes the curve of the ring to spread slightly in the ring seatof die member 9 (for which purpose the groove in the die'member 9forming the ring seat=is made wider than the ring to provide a slightclearance at the inner circumference of the ring as seen in Figure 9)and this spreading decreases the inner diameter of the ring at as seenin Figures 2 and 10, thereby providing a slight head or taper 4 to theinner surface of the ring which serves to hold the sealing disk flange5, Figure 2. The paper bottom It has a flange I9 which fits means ofwhich the edge in imparting the the outer edge closely within the bottlebody I, Figures 3 and 11, and closely over the inner flange of theU-shaped metal bottom ring 20, This ring has an internal lateral flange2| and the depth of bottom flange i9 is such that the bottom disk I8seats closely upon flange 2| as seen in Figures 3 and 11. The outerflange of ring 20 is deeper than the inner flange and the ring beforecontraction to clinch the bottom in position is similar in cross-sectionto the neck ring. This ring is contracted by a tool having acontraotible spring ring which draws the ring .20 into conical form witha narrow and approximately cylindrical flange 22 to an internaldiameter, above the shoulder 23, smaller than the external diameter ofthe bottle body, or approxi- =mately equal tothe internal diameter ofthe body and the external diameter of bottom flange l9, and therebydrawing the body slightly inward as seen at 24, Figures Land 3, pressingthe paper of the body and 'bottom'uiisk upon the shoulder 23 andefiecting a tight joint'at the circumference of the disk by pinching thepaper at an angle to the shoulder 23 as indicated by the dotted line25', Figure 3, and this pinching of the paper at that point causes thepaper within the ring to spread below the pinch. As a result of thecontraction of the bottle body as indicated at 25, the spread of thepaper within the ring, and the formation of a shoulder in the bottlebody under the ring section 22, the body and bottom are firmly lockedwithin the ring, and due to the flange 2| and seating of the bottom overthe curvedshoulder 23 cutting of the bottom disk or its flange isprevented and possible leaks avoided.

In Figures 4 and are shown two forms of containers as distinguished frombottles. In this form a plain cylindrical tube 26 or conical tube 21 areprovided with a bottom like the bottom IS in Figure 3 and secured by alike ring 21!. The top or head is formed with a flanged paper disk likebottom i8 and is secured by a ring 20 after the container is fllled. Theclinching of the ring to lock the bottom and head in position isperformed in the same manner as clinching the bottom ring of the bottleand the joinder of the parts will be as seen in Figure 3.

In Figure 8 is shown a section of a container top having a ring 28similar the lateral flange 2| is omitted and the container is closed bya dished squeeze or push cover 29 which may be of heavy paper or metal.

In Figure 12 is shown another form of container top which may beemployed. In this form a head 38 which may be of paper or metal foilhaving a flange 3| is clinched to the body 26 by ring 28, similar to thering in Figure 8, and above the head 30 is inserted a dished push cover29.

In Figure 13 is shown another form of container top in which a ring 26like ring 20 of the bottle bottom having the flange 2| is employed toseat a sealing gasket 32 to be used in conjunction with a push cover 2s.

The bottles and containers made in accordance with our invention aretreated or coated with a waterproofing material, preferably paraffin,for milk and food products.

The steps of the method and the machine for attaching the neck rings tobottles, and the machine for attaching the bottom rings to bottles andcontainers form no tion, and therefore are not shown in detail and willbe embodied and described in detail'in separate applications forpatents.

What we claim is:

1.\ In a'container' of the class described, the

part of the present invencombination of a body member, a flanged bottommember fitting into the body member, and a 'metal ring member forclinching the bottom to I the body form said ring shaped incross-section and the outer flange deeper than the inner flange and theinner flange having a rounded shoulder upon which the bottom memberrests, and the outer flange contracted to a conic section opposite theinner flange and an approximately cylindrical section above the' innerflange forming an inward shoulder on the outer flange which presses thebody member xinward over the bottom, member and both to= gether upon therounded shoulder of the inner flange of the ring. Y

2. In a bottle shaped container, the combination of apaper body memberformed from a tube one end of which is shaped into a neck by formingloops which are flattened into plaits, a bottom member secured withinsaid body member, and a metal ring member clinching the plaits andforming the bottle month, said ring before clinching being U-shaped incross-section and the outer flange deeper than the inner flange and theirmer flange having an inwardly projecting rounded shoulder, and theouter flange being contracted below said shoulder to form loops over theplaits and contracting the bottle neck under and compressing the paperupon the rounded part of said to ring 20 except that shoulder and saidring contraction transforming the outer flange into an outwardcircumferentialbead.

3. In a bottle shaped container, the combination of a paper body memberformedfrom a tube one end of which is shaped into a neck by formingloops which are flattened into plaits, a bottom member secured withinsaid body member, and a metal ring member clinching the plaits andforming the bottle month, said ring before clinching being U-shaped incross-section and the outer flange deeper than the inner flange and theinner flange having a closure seating flange and rounded shoulder, andthe outer flange being contracted below said shoulder of the innerlateral flange of the ring to form an inward shoulder on the outerflange and loops over the plaits and contracting the bottle neck underand compressing the paper upon said rounded shoulder, and said inwardshoulder formation of the outer flange transforming same into an outwardcircumfer-' ential bead, andthe clinching pressure on the ring eiiectinga reduction of the internal diameter of the ring above the seatingflange for holding a closure disk to the seat. I

4. In a bottle shaped container, the combination of a paper body memberformed from a tube one end of which is shaped into a neck by formingloops which are flattened into plaits, a flanged bottom member fittinginto the body, a metal ring member for clinching the bottomto the body,said ring before clinching being U-shaped in cross-section and the outerflange deeper than the inner flange and the inner flange having a flangeforming over the bottom member and both together upon the roundedshoulder of the inner flange of the and a metal ring member clinchingthe ring, plaits and forming the bottle mouth, said ring beforeclinching being U-shaped in cross-section before clinching being U- Iand the outer flange deeper than the inner flange and the inner flangehaving a closure seating flange and rounded shoulder, and the outerflange being contracted below said shoulder to form loops over theplaits and contracting the bottle neck under and compressing the paperupon said rounded shoulder, and such ring contraction transforming theouter flange into an outward circumferential bead.v

5. In a container of the class described, the

combination or a round body member, a closure member at one end thereof,and a metal binding and stifiening ring member clinched on said body

